UI 常用方法總結之--- UILabel UITextField

UILabel : UIView <NSCoding>

1.創建一個UILabel對象

UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(30, 30, 280, 60)];

 

2.backgroundColor

背景顏色

 

3.text

顯示的文本信息

eg:label.text = @"顯示的文本信息";

 

4.textColor

文本顏色

eg:label.textColor = [UIColor yellowColor];

 

5.shadowColor

文本陰影顏色

eg:label.shadowColor = [UIColor blueColor];

 

6.shadowOffset

文本陰影偏移量

eg:label.shadowOffset = CGSizeMake(3, 3);

 

7.textAlignment

文本格式處理(對齊方式)

eg:label.textAlignment  = NSTextAlignmentCenter;

 

8.lineBreakMode

當文本過長時, label顯示的斷行方式

eg:label.lineBreakMode = NSLineBreakByTruncatingHead;

 

9.numberOfLines

控制label顯示的行數

eg:label.numberOfLines = 0;

 

10.font

字體大小  系統默認字體大小17

eg:label.font = [UIFont systemFontOfSize:20];

 

 

 

UITextField : UIControl <UITextInput, NSCoding> 

 

1.創建一個UITextField對象

UITextField *name = [[UITextFieldalloc]initWithFrame:CGRectMake(30,100, 280, 30)];

 

2.placeholder

默認的佔位字符串 一旦輸入 自動隱藏

eg:name.placeholder = @"請在這裏輸入";

 

3.secureTextEntry

輸入轉換爲黑點

eg:name.secureTextEntry = YES;

 

4.keyboardType

更改鍵盤類型

name.keyboardType = UIKeyboardTypeASCIICapable;

 

5.borderStyle

外觀控制

name.borderStyle = UITextBorderStyleRoundedRect;

 

6.clearButtonMode

清除按鈕

name.clearButtonMode = UITextFieldViewModeWhileEditing;

 

7.backgroundColor

背景顏色

 

8.回收鍵盤操作

[textField resignFirstResponder];

 

9.- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField;      

//是否允許輸入

 

10.- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string;

//限制輸入字符

eg:   if ([string isEqualToString:@"a"]) {

        

        return NO;

    }

    NSLog(@"%@",string);

    return YES;

 

11.- (BOOL)textFieldShouldReturn:(UITextField *)textField;   

//返回按鈕調用方法